thermometer

A thermometer is a device used to measure temperature. It typically consists of a glass tube filled with a liquid, like mercury or alcohol, which expands and contracts with temperature changes. When the thermometer is exposed to heat, the liquid rises, indicating a higher temperature, while it falls in cooler conditions. There are various types, including digital thermometers, which use electronic sensors to provide quick and accurate readings. Thermometers are widely used in medicine, weather measurement, cooking, and various scientific applications to monitor and ensure proper temperature conditions.